Answer: 49.5 round up to 50
Explanation: add the area of a rectangle plus the area of a triangle
A. It is a parallelogram so, the formula is just simple base × height; 16cm × 9cm = 144cm²
B. It is a trapezoid so, the formula is base1 + base2 ÷ 2 × height; 25cm+ 44.67cm= 69.67cm ÷ 2 = 34.835cm × 20cm= 696.7cm²
C and D are irregular shapes - the diagram will show you how to do them...
Answer:
h^2 means h²
(h squared)
Step-by-step explanation:
Step 1: Write equation
144 + h² = 225
Step 2: Subtract 144 on both sides
h² = 81
Step 3: Take square root
√h² = √81
h = 9